This Test Guideline is designed to assess the effects of prolonged exposure to chemicals on the growth of juvenile fish …. Juvenile fish in exponential growth phase are placed, after being weighed, in test chambers and are normally exposed to five …. Effects on growth rates are analyzed using a regression model in order to estimate the concentration that would cause a x …

quantify substance-related effects on vegetative growth over this period based on assessments of selected measurement variables … area, dry weight or fresh weight). From the average specific growth rates (or yield) recorded in a series of test solutions …, the concentration bringing about a specified x % inhibition of growth rate (or yield) is determined and expressed as the …